I hope this helps you
radius=diameter/2
radius=1,5/2
radius=0,75
Area=pi. r^2
Area=3,14. (0,75)^2
Area=1,76
Answer:
Make x 0 and y 3
Step-by-step explanation:
0 multiplied by 2 is 0
-3 multiplied by 3 is -9
0-9 = -9
Complete Question
A civil engineer is analyzing the compressive strength of concrete. Compressive strength is normally distributed with
. A random sample of 12 sample specimens has a mean compressive strength of 
. Round your answers to 1 decimal place. (a) Calculate the 95% two-sided confidence interval on the true mean compressive strength of concrete.
Answer:
Step-by-step explanation:
From the question we are told that:
Sample size 
Standard deviation 
Sample mean 
Confidence level =95%
significance level
From table \alpha 0.05
Gives
Generally the equation for confidence interval is mathematically given by
Answer:
j=2
Step-by-step explanation:
<em>First, subtract by 5 from both sides of equation.</em>
<em>5-j-5=3-5</em>
<em>Simplify.</em>
<em>3-5=-2</em>
<em>-j=-2</em>
<em>Divide by -1 from both sides of equation.</em>
<em>-j/-1=-2/-1</em>
<em>Simplify, to find the answer.</em>
<em>-2/-1=2</em>
<em>It change negative to positive.</em>
<em>j=2 is the correct answer.</em>
<em>I hope this helps you, and have a wonderful day!</em>
Answer:
(-3,4), (-3,1), and (-5,1)
